Make numpy optional pylance dependency

[wjones127]

I don't think it's required, and it adds ~15MB.

[rishabhRsinghvi]

Hello @wjones127, I would like to take this issue. Thank you.

[jameswu1991]

for anyone who may have come across this issue wondering why numpy is locked to <2.0, i want to add a comment to make a cross-reference back to the PR that created the lock:

• fix: pin numpy version to avoid numpy >= 2.0 until pyarrow supports it #2637

furthermore, it seems that pyarrow themselves are working with the idea of making numpy dependency optional:

• GH-25118: [Python] Make NumPy an optional runtime dependency  apache/arrow#41904
• [Python] Make NumPy an optional runtime dependency apache/arrow#25118

since the pyarrow PR was only merged last week, i'd expect this to be a part of the upcoming pyarrow 18 release. once that is complete, perhaps making numpy dependency optional for pylance would be easier